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Measurement of the Nuclear Absorption of Electrons by the Atmosphere up to about 1010 Electron-Volts

Subjects

Abstract

ACCURATE observations on cosmic ray intensities as measured by Neher electroscopes have been made in the equatorial belt (Madras, India, mag. lat. 3° N.) and in San Antonio, Texas (mag. lat. 38·5° N.) up to between 98 and 99 per cent of the way to the top of the atmosphere. The most significant results of these measurements may be summarized as follows: